<!DOCTYPE html>
<html lang="zh">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Three.js Demo</title>
    <style>
      html,
      body {
        padding: 0px;
        margin: 0px;
        width: 100%;
        height: 100%;
      }
      #rander-area {
        position: fixed;
        width: 100%;
        height: 100%;
      }
    </style>
  </head>
  <body>
    <div id="rander-area"></div>
  </body>
</html>
